Design of praseodymium-doped chalcogenide micro-disk emitting at 4.7 μm

Giuseppe Palma (1) , Mario Christian Falconi (1) , Florent Starecki (2) , Virginie Nazabal (2) , Julien Ari (2) , Loïc Bodiou (3) , Joël Charrier (3) , Yannick Dumeige (3) , Emeline Baudet (4) , Francesco Prudenzano (1)

1 Department of Electrical and Information Engineering
2 ISCR - Institut des Sciences Chimiques de Rennes
3 Institut FOTON - Institut des Fonctions Optiques pour les Technologies de l'informatiON
4 Department of Graphic Arts and Photophysics [University of Pardubice]

A compact amplifier based on chalcogenide Pr³⁺-doped micro-disk coupled to two ridge waveguides is designed and refined by means of a home-made computer code. The gain G ≈ 7.9 dB is simulated for a Pr³⁺ concentration of 10 000 ppm, input signal power of -30 dBm at the wavelength 4.7 µm and input pump power of 50 mW at the wavelength 1.55 µm. In the laser behavior, i.e. without input signal, the maximum slope efficiency S = 8.1 × 10^-4 is obtained for an input pump power of 2 mW. This value is about six times higher than that simulated for an optimized erbium-doped micro-disk.

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]; Chemical Sciences; Material chemistry

Giuseppe Palma, Mario Christian Falconi, Florent Starecki, Virginie Nazabal, Julien Ari, et al.. Design of praseodymium-doped chalcogenide micro-disk emitting at 4.7 μm. Optics Express, 2017, 25 (6), pp.7014-7030. ⟨10.1364/OE.25.007014⟩. ⟨hal-01515164⟩